320 
OROBANCHACEAE. 
i. MYZORRHIZA Philippi. Broom-rape. 
Corolla 20-25 mm. long; anthers woolly. 1. M. multiflora. 
Corolla 15-18 mm. long; anthers glabrous. 2. M. ludoviciana. 
1. Myzorrhiza multiflora (Nutt.) Rydb. ( Orobranche multiflora Nutt.; 
Aphyllon multiflorum A. Gray) In sandy soil from Colo, and Utah to Tex. 
and Ariz.—Along the McElmo; Dixon Canon. 
2. Myzorrhiza ludoviciana (Nutt.) Rydb. ( 0 . Ludoviciana Nutt.; Aphyl¬ 
lon Ludovicianum A. Gray) In sandy soil from Ills, and Wash, to Tex. and 
Calif.—North Denver, near Argos {Eastwood) . 
2. THALESIA Raf. Cancer-root. 
1. Thalesia fasciculata (Nutt.) Britton. Parasitic on Composites, espe¬ 
cially Artemisia frigida, from Ind. and Yukon to Colo, and Calif.; also Mex. 
—Alt. 4000-11,000 ft.—Near Boulder; Silver Plume; West Spanish Peak; 
Como, South Park; Salida; Garden of the Gods; Table Mountain; Golden; 
Arboles; Ft. Collins; Dolores; Table Rock; Fossil Creek; Quimby; Soldier 
Canon. 
Family 123. MARTYNIACEAE Link. Unicorn-plant Family. 
r. MARTYNIA L. Unicorn-plant; Ram’s-horn. 
1. Martynia Louisiana Mill. ( M . proboscoidea Glox.) In waste places 
from Me. and Iowa to N. C. and Colo.—Ft. Collins; Canon City. 
Order 45. PLANTAGINALES. 
Family 124. PLANTAGINACEAE Lindl. Plantain-Family. 
1. PLANTAGO L. Plantain. 
Flowers all perfect; corolla not closed over the fruit; stamens 4. 
Leaves lanceolate to ovate; neither leaves nor spike silky-pubescent; stamens 
in all the flowers long-exserted. 
Spike cylindrical; seeds not concave on the faces. 
Leaves ovate, abruptly contracted at the base; seeds more than 2 in 
each cell. 
Pyxis dehiscent at the middle, rounded-ovoid, obtusish; leaves usually 
thick and the dense spike obtuse. 1. P. major. 
Pyxis dehiscent far below the middle, elongated-ovoid, very acute; 
leaves thin and the lax spike acute. 2. P. asiatica. 
Leaves lanceolate, gradually tapering into the petioles; seed not more 
than 2 in each cell. 
Leaves thin ; plant not woolly at the base. 3. P. Tzveedyi. 
Leaves thick; plant with red or brown wool at the base. 
4. P. eriopoda. 
Spike short, oblong, 1-3 cm. long; seeds concave on the faces; leaves nar¬ 
rowly lanceolate. 5. P. lanceolata. 
Leaves linear; leaves and peduncles pubescent with long silky hairs; anther 
in the more fertile flowers included; seeds solitary in each cell; concave on 
the faces. 6. P. Purshii. 
Flowers subdioecious or polygamo-dioecious ; corolla in the fertile plant remain¬ 
ing closed or early closing over the capsule ; stamens 2 ; leaves filiform. 
7. P. myosuroides. 
